{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Selective stimulation of the DA D1 receptor may provide better integration of neural inputs transmitted to the internal segment of the globus pallidus ( referred to as the basal ganglia output ) compared with levodopa and selective DA D2 receptor agonist ."}
{"Chemical": ["DA", "levodopa"], "Disease": []}